In March 2018 researchers from the USA published the results of their study to compare a pecan rich diet with an isocaloric control diet similar in total fat and fibre content, but no nuts, on risk factors related to cardiovascular disease and diabetes type 2 in healthy middle-aged and older adults who were overweight or obese. The study lasted for 4 weeks. Results showed that, compared to the isocaloric control diet, a pecan-rich diet improved insulin resistance and beta cell function. Pecan consumption was also seen to reduce the risk of diabetes type 2, stroke and heart disease.
McKay DL et al. A Pecan-Rich Diet Improves Cardiometabolic Risk Factors in Overweight and Obese Adults: A Randomized Controlled Trial. Nutrients; 2018 Mar 11;10(3) [Epub ahead of print]